EternalEl'the That is partially wrong. You can have more than one bump map in a .package with different styled recolors that require different bump maps. Although it can be done through Studio you would need to edit in the warehouse to add them. It's not as easy or straight forwards because it's not automated yet (since it's not a very frecuent feature to use I think). This works in mostly all objects meshes editing the MODEL LOD and MODEL resources from the warehouse. For walls, since they use the same mesh and are only a recolor the resources are a bit different. I've never worked with those but you can try this:
You need to:
1. Go to the warehouse tab
2. Look for the Material Definition resource. You should have 3 per recolor of your wall (one for each the short, medium and tall version of the recolor). This resource references the images of your swatches.
3. If you cloned one swatch only as a base for yours you should have 3 Material Definition resources.
4. Go to the first one in the list, in the data tab in the right find Materials /Edit items button.
5. Find the normal map line and check the instance number. Close the tab.
6. Again in the warehouse, check which DST bump map image's instance matchs the one in the material definition resource. For example, lets say it's the short version of the bump map (short walls). Now that you found it you know which bump map is referenced for you recolor. Note that.
7. Add a new swatch. 3 new material definition resources will be created along with a new Wall resource in the warehouse. To know which material definition resources correspond to your newly added swatch go to the wall resource of your new swatch. In the right, scroll down until you see WallMaterials/ Edit items. You will find there the instances of your material definition resources.
8.Once you know which one they are add a new DST bump map. You can do that using the ADD button in the warehouse. Choose DST image and give it a unique instance number.
9. Note that instance number. And import the new bump map. (This is only for the short wall image), you'll need to the same for the rest.
10. Go into the material definition resource of your short wall images, find the normal map entry as before and change the instance for your own.
11. Repeat this for all the short, medium, and tall walls of your recolors. It's a tiring process I agree.
Note: If you have trouble identifing which Material definition resource is the one for your short, medium or tall images check the other instances. The instance in the diffuse line should match with one of the diffuses of one of those wall sizes.
Note1: I can probably expain better if you don't follow this instructions (They might not be really straight forward, sometimes I'm not good at explaining when I have little time, im sorry). Or I can add pics too.
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OR.
You can create as EternalEl'the suggested more than one .package and then merge it into one with Studio. It might be easier but It will generate more entries in the catalog. Unless... you put the same Prototype ID in your wall resource in all of your packages to be the same before merging. You can also try that.
This is all experimental, I've never done it and I don't have time to try it right now. But If you have and want to try it let me know how it goes!
It should work.
